JP2002121935A - Pull-out rotating operation type locking handle device for door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pull-out rotating operation type locking handle device for a door constituted to accurately restrain an operating handle in a recessed position. SOLUTION: The operating handle 8 is so formed that a base end part side face fulcrum part 8a of the operating handle 8 comes to the side of a base end part end face 8b with respect to the center axis L of a main shaft 4 and a countershaft 5 passing the cross section center of a transverse pivot 9 in the recessed position of the operating handle 8 in a fixed case 2 by energizing the countershaft 5 to move backward by a spring 11. When bringing down the operating handle 8 toward a recessed part 7 of the fixed case 2 in a position immediately before locking, where a clamp plate 17 is rotated into the back face side space of a step part 16, a locking protrusion 13 on the side of a bearing cylinder part 3 is engaged with a locking protrusion 14 on the side of a regulating disc 10, and the operating handle 8 is guided and held into a normal position aligned with the recessed part 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drawer rotation type door lock handle device used for locking and opening / closing a door of a storage box or the like of various devices.

[0002]

2. Description of the Related Art In a lock handle device for a drawer-rotating operation type door disclosed in Japanese Utility Model Publication No. Hei 8-2336, a bearing cylinder is projected from the rear side of a fixed case fixed to the door.
The main shaft is fitted into the bearing cylinder portion so as to be relatively rotatable and immovable in the front-rear axial direction, and the sub shaft is fitted into the main shaft so that the center axis is aligned so as to be relatively non-rotatable and moveable in the front-rear axial direction. The base end of the operating handle housed in the groove in the front-rear direction and the recess of the fixed case so as to be able to protrude and retract is pivotally attached to the front end of the sub-shaft 5 by a transverse pivot intersecting with the center axis of the main shaft and the sub-shaft. When the operation handle is pulled out of the recess, the distance between the base end side surface of the operation handle that comes into contact with the bottom of the groove when the operation handle is immersed in the recess and the transverse pivot is set to the bottom of the groove. The auxiliary shaft is set to be longer than the distance between the proximal end surface of the operating handle and the transverse pivot, and the secondary shaft is moved backward and biased by a spring arranged concentrically with the main shaft and the secondary shaft. At the end, with the receiving part on the fixed frame side It is connected the latch plate to escape.

In this conventional apparatus, when the operating handle is pulled out and rotated about the transverse pivot, the countershaft moves backward by the difference between the two distances, and the engagement between the stopper plate and the receiving part is released. On the other hand, when the operation handle is pushed down and rotated about the transverse pivot, the countershaft is moved forward by the difference between the two distances, and the catch plate is pulled into engagement with the catch. In order to prevent the catch plate from interfering with the receiving portion when the door is opened, the retaining plate is retracted and rotated from the space on the back side of the receiving portion by rotating the main shaft and the counter shaft in a predetermined direction with the operation handle. . In an embodiment of this conventional device, the side surface of the base end of the operation handle at the position where the operation handle is immersed in the fixed case is operated with respect to the center axes of the main axis and the sub axis passing through the center of the cross section of the transverse pivot. The handle is formed so as not to be on the base end side but on the front end side, and the boundary between the base end side surface and the base end end surface is a dead center position on the center axis of the main shaft and the sub shaft. In the first embodiment, the base end side surface and the base end surface are connected by an arc surface whose curvature decreases as going toward the base end surface, and the main shaft and the middle of the arc surface are connected. A second embodiment is shown passing through the central axis of the countershaft.

In the first embodiment constructed as described above, when the boundary line between the base end side surface and the base end end surface exceeds the dead center position to the front end side due to external vibration and shock, The operating handle is urged to rotate about the transverse pivot in the upright direction by the spring for urging the shaft rearward, and there is a risk that the operating handle may accidentally project from the fixed case. Further, in the second embodiment, even if there is no external vibration or shock, the operating handle is always urged to rotate about the transverse pivot in the upright direction by the spring, and when the operating handle is released, The operating handle immediately projects automatically from the fixed case.

In order to prevent accidental or automatic protrusion of the operation handle, in this conventional device, a movable engagement piece having a detachable engaging claw is provided on the fixed case side at the tip of the operation handle. The movable engagement piece is slidably biased to the distal end of the operation handle by a spring, and when the operation handle is immersed, the locking claw of the movable engagement piece is engaged with the distal end of the operation handle. The operation handle is restricted to the immersion position. However, adding a spring-biased movable engagement piece as a locking means for the operation handle not only complicates the shape and structure of the entire device for securing a storage section for the locking means, but also increases the number of parts. This leads to an increase in manufacturing and assembly costs.

[0006]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an electronic device in which an operating handle is immersed in a fixed case.
The operating handle is rotationally urged in the falling direction by a spring for urging the countershaft and the catch plate rearward, so that the operating handle is accurately restrained at the immersion position without the need for additional locking means. An object of the present invention is to provide a lock handle device for a drawer rotating operation type door.

[0007]

A lock handle device for a drawer-rotating operation type door according to the present invention will be described below with reference to the reference numerals in the accompanying drawings. The main body 4 is fitted into the main body 4 so as to be relatively rotatable and immovable in the front-rear direction, and the auxiliary shaft 5 is centered so as to be relatively non-rotatable and movable in the front-rear direction. The base end of the operation handle 8 housed in the groove 6 in the front-rear direction of the main shaft 4 and the recessed portion 7 of the fixed case 2 so as to be able to protrude and retract with the axes aligned with each other, and intersects the center axis of the main shaft 4 and the sub shaft 5. When the operating handle 8 is immersed in the recessed portion 7, it is pivotally attached to the front end of the sub shaft 5 by the transverse pivot 9, and the base end side fulcrum 8 a of the operating handle 8 abutting on the groove bottom surface 6 a and the transverse pivot 9. The distance D1 between the operating handle 8 and the recess 7 is set to be longer than the distance D2 between the base end surface 8b of the operation handle 8 which comes into contact with the groove bottom surface 6a when pulled out of the groove 7 and the transverse pivot 9.

Then, the sub shaft 5 is moved rearward by a spring 11 arranged concentrically with the main shaft 4 and the sub shaft 5, and the base end of the operation handle 8 is located at a position where the operation handle 8 is immersed in the fixed case 2. The side surface fulcrum portion 8a is formed so as to be located on the base end surface 8b side of the operation handle 8 with respect to the center axis L of the main shaft 4 and the sub shaft 5 passing through the center of the cross section of the transverse pivot 9. The receiving part 1 on the fixed frame 15 side at the rear end
6 and a catch plate 17 which engages with and disengages from the transverse pivot 9
When the operating handle 8 is pulled out and rotated about the center, the counter shaft 5 moves backward by the difference between the distance D1 and the distance D2, and the engaging engagement between the stopper plate 17 and the receiving portion 16 is released, while When the operation handle 8 is pushed down and rotated about the pivot 9, the counter shaft 5 moves forward by the difference between the distance D 1 and the distance D 2, and the stopper plate 17 is pulled and engaged with the metal receiving portion 16, and the operation handle 8 is moved. Is set to be urged to rotate about the transverse pivot 9 in the falling direction by the urging of the spring 11.

In the door lock handle device of the present invention thus configured, when the door 1 is locked to the fixed frame 15 as shown in FIG. The whole is immersed and stored in the recess 7,
A stopper plate 17 is engaged with the receiving part 16. 7 and 8
As shown in FIG. 19, the sub shaft 5 compresses the spring 1 and is attracted to the front as much as possible, and the base end side fulcrum 8a of the operation handle 8 comes into contact with the bottom surface 6a of the groove 6 of the main shaft 4. ing.

In this locked state, when the operating handle 8 is rotated about the transverse pivot 9 and pulled out from the recessed portion 7 of the fixed case 2, as shown in FIG.
a, the base end surface 8b comes into contact with the base end side fulcrum 8a instead of the base end side fulcrum 8a, and the sub shaft 5 is pushed rearward along the main shaft 4 by the difference between the distances D1 and D2. And is held at the moving position by the bias of the spring 11. Due to the retreat of the sub shaft 5, the stopper plate 17 moves in parallel to the space on the back side of the receiving part 16.

After that, as shown in FIG. 2, when the sub shaft 5 and the main shaft 4 are integrally turned in a predetermined direction with respect to the bearing cylinder portion 3 by the operation handle 8, the front end portion of the stopper plate 17 becomes 1
6 and retracts and rotates to a position where it does not collide with or interfere with the receiving part 16 when the door 1 is opened. Therefore, the door 1 is opened by pulling the operation handle 8 toward the user. In this unlocked state, the spindle 4 and the stopper plate 17
Is held in a state immediately after unlocking by the urging force of the spring 11.

When the operating handle 8 is reversely rotated to the locked position after the door 1 is closed, the front end of the stopper plate 17 rotated integrally with the main shaft 4 and the sub-shaft 5 receives the receiving member on the fixed frame 15 side. It enters the space on the back side of the metal part 16. When the operation handle 8 is housed in the recess 7 of the fixed case 2 by being pushed down and rotated about the transverse pivot 9 as a center, the counter shaft 5 is attracted to the front side by the difference set in the distance D1 and the distance D2, The front end of the stopper plate 17 moves in parallel from the back side of the receiving part 16 and approaches the receiving part 16 so as to abut and engage without any friction.

The movement of the operation handle 8 during the push-down rotation will be described in more detail as follows.
That is, as shown by a two-dot chain line in FIG.
When the operating handle 8 is pushed down about the transverse pivot 9 and rotated from the released state which stands almost at a right angle to the main shaft 4, the base end face 8b of the operating handle 8 is inclined obliquely at the same time as the start of the rotation operation. The operation handle 8 is separated from the groove bottom surface 6a and the base end side fulcrum 8a and the base end surface 8b.
At the boundary portion 8c with the groove bottom surface 6a.

When the push-down rotation is continued, the boundary 8
c and the contact point between the groove bottom surface 6a moves toward the center axis L of the main shaft 4 and the sub shaft 5, and when the contact point exceeds the dead point position on the center axis L, the operating handle 8
Is rotationally biased about the transverse pivot 9 in the falling direction (counterclockwise in FIGS. 5 and 19) by the action of the spring 11, and is rapidly rotated in the falling direction.
As shown in FIGS. 7 and 19, when the operation handle 8 is immersed in the fixed case 2, the operation handle 8
The base end side fulcrum 8a is formed not only by the boundary 8c with the base end end face 8b, but also by the entirety of the base end side fulcrum 8a of the main shaft 4 and the sub shaft 5 passing through the center of the cross section of the transverse pivot 9. Since the operation handle 8 is located on the base end face 8 b side with respect to the center axis L, the operation handle 8 is constantly urged to rotate about the transverse pivot 9 in the falling direction by the spring 11. At the retracted position, the fulcrum of the base end side surface 8a of the operation handle 8 is in contact with the groove bottom surface 6a of the main shaft 4 over the entire surface. The distal end of the operating handle 8 is in contact with the edge 2a of the fixed case 2 far from the bearing cylinder 3, and is pressed against the edge 2a by the spring 11 rotating in the falling direction. .

[0015]

In the illustrated embodiment, the operating handle 8 has a modified T-shape in which a grip 24 is connected at a right angle to a distal end of a leg 22 having a base end pivotally connected to the countershaft 5. And
Depressed portion 2 into which grip portion 24 enters in front of fixed case 2
5 is formed. Slope 2 for hand insertion
6 is formed inside, and a cutout 27 is formed on the side of the fixed case 2 on the other side of the depression 25. In the lying state, the grip portion 24 of the operation handle 8 partially protrudes from the cutout portion 27, so that a finger can be easily hooked.

A lock unit 18 is provided on the fixed case 2 at a position separated downward from the bearing cylinder 3, and a rotor 19 of the lock unit 18 protrudes to the rear side of the fixed case 2.
Has a cam plate 20 fixed thereto. Inside the fixed case 2, a lock bar 21 guided by a back plate 28 is arranged in a vertical direction, and the lock bar 21 can advance and retreat toward the recess 7. The lock rod 2 is attached to the leg 22 of the operation handle 8.
The cam plate 20 is provided with a receiving hole 23 for engaging and disengaging the base end 21b of the lock rod 21 to move the lock rod 21 toward the receiving hole 23. A drive projection 20a is provided. The cam plate 20 is provided with a second drive projection 20b adjacent to the first drive projection 20 for moving the lock rod 21 in a direction away from the receiving hole 23. The base end 21b of the lock rod 21 is bent at right angles to the main body.

As shown in FIG. 3, when the operating handle 8 is accommodated in the recess 7 of the fixed case 2, the base 21b of the lock rod 21 is pushed up by the first driving projection 20a of the cam plate 20. Therefore, the tip 21a of the lock rod 21 is engaged with the receiving hole 23 of the leg 22 of the operation handle 8 from the guide hole 29 in the wall of the recess 7. Therefore, the operation handle 8 is locked at a position where it falls down in the recessed portion 7 of the fixed case 2. As a result, unauthorized operation of the operation handle 8 and rotation operation are stopped, and security is improved.

When a predetermined key 30 is inserted into the lock unit 18 and the rotor 19 is rotated in a predetermined direction, the cam plate 20 is rotated.
Of the lock rod 21 by the second drive projection 20b.
1b is pushed down, the tip 21 of the lock rod 21
a escapes from the receiving hole 23 of the leg portion 22 of the operation handle 8,
The lock of the operation handle 8 with respect to the fixed case 2 is released. Therefore, the operation handle 8 can be pulled out from the recessed portion 7 and can be rotated.

A vertically long concave portion 31 formed by a back plate 28 in a portion adjacent to the bearing cylinder 3 of the fixed case 2 accommodates a click pin 33 urged by a compression coil spring 32, and the click pin 33 is a main shaft. By engaging with the side recess 34 of the side 4, the operator is notified that the main shaft 4 has rotated to the locking position or the unlocking position. The back plate 28 is fixed to the fixed case 2 by screws 44. A click pin 37 urged by a compression coil spring 36 is accommodated in a vertically concave portion 35 formed by the bent plate 7 on the upper rear surface of the fixed case 2, and the click pin 37 is a tip of the leg 22 of the operation handle 8. By engaging the side recess 38 of the portion, the operator is notified that the operating handle 8 has been rotated to the correct lying position. Folded plate 47 is screw 4
8 is fixed to the fixed case 2.

The counter shaft 5 is formed of a square rod, and has a stopper plate 17.
Is fitted to the counter shaft 5 in a non-rotatable manner 7 with a square hole 42 at the center, and is fastened and fixed to the counter shaft 5 by screws 39. A pair of right and left lock bars 40 and 41 are connected to the stopper plate 17. The cam plate 20 is fixed to the rotor 19 of the lock unit 18 by screws 46 via a washer block 45. First drive projection 20a and second drive projection 20
b is bent and formed on the front side, and the base end 2 of the lock rod 21 is formed.
Press 1b.

Although not belonging to the technical scope of the present invention, in the illustrated door lock handle device, the regulating disk 10 is fitted to the rear end of the counter shaft 5 so as to be relatively non-rotatable, and the counter shaft 5 is moved rearward. The spring 11 that moves and biases the inner bottom 12 of the bearing cylinder 3
Between the control disk 10 and the inner bottom 1 of the bearing cylinder 3
2, a plurality of locking projections 13 arranged on the same circle with the main shaft 4 as the center are protruded in a bevel gear shape toward the rear side, and the sub shaft 5 is centered on the front side of the regulating disk 10. A plurality of locking projections 14 arranged on the same circle are provided in a bevel gear shape so as to project toward the front surface.
In the position just before locking which has been rotated to the back side space of
When the operating handle 8 is lowered toward the recess 7 of the fixed case 2, the locking projection 13 on the bearing barrel 3 and the locking projection 14 on the regulating disk 10 engage while the operating handle 8 traverses. When raised and rotated about the pivot 9, the regulating disc 10 is arranged so as to move rearward by the difference between the distance D 1 and the distance D 2 to disengage the locking projections 13 and 14. And furthermore, regulated disc 1
The biasing spring 11 of 0 is formed of a compression coil spring, and is disposed outside the row of the locking projections 13.

[0022]

According to the lock handle device for a drawer rotating operation type door of the present invention configured as described above, the sub shaft 5 is urged rearward by the spring 11 arranged concentrically with the main shaft 4 and the sub shaft 5. When the operation handle 8 is immersed in the fixed case 2, the base end side fulcrum 8 a of the operation handle 8 is positioned at the base end face with respect to the center axis L of the main shaft 4 and the sub shaft 5 passing through the cross-sectional center of the transverse pivot 9. 8b, when the operating handle 8 is in the retracted position, the operating handle 8 is always urged to rotate about the transverse pivot 9 in the falling direction by the spring 11, and the normal operation is performed. The operation handle 8 does not accidentally rotate in the upright direction due to the vibration impact, and does not protrude from the fixed case 2, and can be used with high safety.

By disposing the base end side fulcrum 8a of the operation handle 8 toward the base end face 8b with respect to the center axis L in this manner, the spring for urging the sub shaft 5 rearward is provided. The repulsive force of 11 is also used as a driving force for restraining and holding the operation handle 8 at the retracted position. Since one spring component has two functions, the spring is biased as in the above-described conventional device. It is not necessary to separately add a locking means such as a movable engagement piece, and the shape and structure of the entire apparatus are simplified by that much, and the manufacturing and assembly cost can be reduced by reducing the number of parts.

[Brief description of the drawings]

FIG. 1 is a front view of a lock handle device for a drawer rotating operation type door according to an embodiment of the present invention, wherein the door is in a locked state.

FIG. 2 is a rear view of the door lock handle device.

FIG. 3 is a left side view of the door lock handle device.

FIG. 4 is a right side view of the door lock handle device.

FIG. 5 is a plan view of the door lock handle device.

FIG. 6 is a bottom view of the door lock handle device.

FIG. 7 is a sectional view taken along line AA of FIG. 1;

FIG. 8 is a sectional view taken along line BB of FIG. 2;

FIG. 9 is a sectional view taken along line CC of FIG. 2;

FIG. 10 is a front view of a regulating disk used in the door lock handle device.

FIG. 11 is a rear view of the regulation disk.

FIG. 12 is a bottom view of the regulating disk.

FIG. 13 is a sectional view taken along line DD of FIG. 10;

FIG. 14 is a sectional view taken along line EE of FIG. 10;

FIG. 15 is a front view of a fixed case used for the door lock handle device.

FIG. 16 is a rear view of the fixed case.

FIG. 17 is a sectional view taken along line FF of FIG. 16;

18 is a sectional view taken along line GG of FIG.

FIG. 19 is a horizontal sectional view of a main part of the lock handle device for a door, showing a positional relationship between a base end side fulcrum portion of the operation handle and central axes of the main shaft and the sub shaft.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 2 Fixed case 3 Bearing cylinder part 4 Main shaft 5 Subshaft 6 Groove part of main shaft 7 Depression part of fixed case 8 Operation handle 8a Side support point of base end part of operation handle 9 Transverse pivot 11 Spring for bias 12 Bearing cylinder part Inner bottom 15 Fixed frame 16 Receptacle 17 Stopper plate L Center axis of main shaft and sub shaft

Claims (1)

[Claims] 1. A bearing case 3 is protrudingly provided on the back side of a fixed case 2 fixed to a door 1, and a main shaft 4 is fitted into the bearing case 3 so as to be relatively rotatable and immovable in the front-rear direction. An operation handle in which the sub shaft 5 is fitted into the main shaft 4 so that the sub shaft 5 cannot rotate relative to each other and can move in the front-rear direction with the center axis aligned, and can be retracted and retracted in the groove 6 in the front-rear direction of the main shaft 4 and the recess 7 of the fixed case 2. 8 is pivotally attached to the front end of the sub shaft 5 by a transverse pivot 9 intersecting the center axis of the main shaft 4 and the sub shaft 5, and when the operating handle 8 enters the recess 7, the groove bottom surface 6a
The distance D1 between the base end side fulcrum portion 8a of the operating handle 8 and the transverse pivot 9 is set to the base of the operating handle 8 which comes into contact with the groove bottom surface 6a when the operating handle 8 is pulled out of the concave portion 7. The auxiliary shaft 5 is set to be longer than the distance D2 between the end surface 8b and the transverse pivot 9, and the sub shaft 5 is moved rearward by a spring 11 arranged concentrically with the main shaft 4 and the sub shaft 5, and the operation handle 8 is fixed. At a position immersed in the case 2, the base end side fulcrum portion 8 a of the operation handle 8 is connected to the center axis L
On the other hand, a stop plate 17 which is formed so as to be located on the base end surface 8b side of the operation handle 8 and which is engaged with and disengaged from the metal receiving portion 16 on the fixed frame 15 side is connected to the rear end of the sub shaft 5. When pulling out and rotating the operation handle 8 about the transverse axis 9,
The counter shaft 5 moves backward by the difference between the distance D1 and the distance D2 to release the engaging engagement between the stopper plate 17 and the receiving portion 16, while pushing down and rotating the operation handle 8 about the transverse pivot 9. At this time, the counter shaft 5 moves forward by the difference between the distance D1 and the distance D2, the catch plate 17 is pulled and engaged with the receiving portion 16, and the operating handle 8 is moved about the transverse pivot 9 by the bias of the spring 11. A lock handle device for a drawer rotating operation type door that is biased to rotate in the falling direction.